Function sql_fn_parser_setup

src/backend/executor/functions.c:357–365

* Parser setup hook for parsing a SQL function body. */

 * Parser setup hook for parsing a SQL function body.
 */
void
sql_fn_parser_setup(struct ParseState *pstate, SQLFunctionParseInfoPtr pinfo)
{
	pstate->p_pre_columnref_hook = NULL;
	pstate->p_post_columnref_hook = sql_fn_post_column_ref;
	pstate->p_paramref_hook = sql_fn_param_ref;
	/* no need to use p_coerce_param_hook */
	pstate->p_ref_hook_state = (void *) pinfo;
}

/*
 * sql_fn_post_column_ref		parser callback for ColumnRefs